✈️ AS9100
AS9100 Rev D Aerospace Suppliers in Kalamazoo, MI
Aerospace work in Kalamazoo tends to come from shops that earned their reputation on medical and automotive precision, then invested in AS9100 to chase higher-margin flight-critical and defense contracts. That heritage matters: the AS9100 Rev D shops here usually carry deep dimensional discipline and a habit of full traceability, because their existing customers already demanded it. If you're a prime, sub-tier, or MRO buyer trying to qualify a Southwest Michigan source, the questions below separate a real aerospace quality system from a machining shop that bought a certificate.
AS9100ISO 9001NADCAP
AS9100 Rev D is ISO 9001:2015 with a heavy aerospace overlay, and the overlay is where the cost and rigor live. On top of the base quality system, Rev D adds requirements for configuration management, counterfeit-parts prevention, product safety, risk management, foreign object debris (FOD) control, and first article inspection to AS9102. A Kalamazoo shop that holds AS9100 has built all of that on top of whatever ISO 9001 system it already ran for its medical and automotive customers.
The practical difference a buyer sees is in the paperwork and the discipline around change. An AS9100 shop won't quietly substitute a material or tweak a process without configuration control and customer notification, because Rev D forces that traceability. They'll also have a FOD program walking the floor and a documented counterfeit-parts policy governing how they buy raw stock and hardware, which is exactly the protection a flight-critical or defense buyer needs.
Because the AS9100 base in Kalamazoo grew out of precision machining rather than build-to-print airframe work, the strongest local capability is in machined components, fixtures, and lower-volume assemblies. Know that when you scope a program: this is a region to source detail parts and bracketry from, not necessarily full structural assemblies.
Reading the certificate and the OASIS database
AS9100 certification is tracked differently than a generic ISO standard. Certified suppliers are recorded in the OASIS database (Online Aerospace Supplier Information System) maintained under the IAQG, and a legitimate Kalamazoo AS9100 shop will have a live OASIS entry showing its certification body, certificate number, scope, and status. Before you qualify a supplier, pull their OASIS record and confirm the certificate is active rather than suspended or expired. This is the aerospace equivalent of checking the registry, and it's non-negotiable for defense and flight work.
Scope discipline is even more important in aerospace than in commercial machining. The certificate scope tells you exactly what the shop is approved to do under its aerospace quality system. If your part needs heat treatment, anodizing, NDT, or plating, those are special processes that AS9100 alone does not cover; they require NADCAP accreditation at whoever performs them. A shop can be perfectly AS9100 certified for machining and still need to flow your special processes to a NADCAP-accredited source.
Watch for the gap between 'AS9100 certified' and 'approved by your prime.' Many primes maintain their own approved-supplier lists with additional flowdowns beyond AS9100. A Kalamazoo shop being AS9100 certified is the entry ticket, but confirm whether your specific customer's quality clauses, like Boeing, Lockheed, or a Tier 1's, are also accepted by the supplier.
Special-process flowdown and the NADCAP question
Almost no machined aerospace part is finished entirely inside one shop. The metal gets cut in Kalamazoo, but heat treatment, surface treatment, nondestructive testing, and any welding usually flow out to specialist processors. AS9100 requires the prime machining supplier to control those outside processes, but the processors themselves must hold NADCAP accreditation for the specific special process to satisfy most aerospace customers.
When you qualify a Kalamazoo AS9100 machine shop, ask for their approved-supplier list for special processes and confirm each named processor is NADCAP accredited for the exact process and to the exact specification your part calls out, whether that's AMS2750 for heat treat pyrometry or a specific NDT method. The Southwest Michigan area has limited in-region NADCAP processing, so much of this flows to the Detroit, Chicago, or broader Midwest aerospace corridor. That adds transit time to the routing.
Build that flowdown reality into your lead-time planning. A part that takes a week to machine in Kalamazoo may take another two to three weeks once it ships out for heat treat and NDT and comes back. A strong supplier manages those legs as a single program and gives you one consolidated certification package; a weaker one hands you a partial cert and leaves you chasing the outside processors yourself.
What a complete aerospace data package looks like
For an AS9100 part, the documentation package is the deliverable just as much as the hardware. Expect a first article inspection report in AS9102 format for any new part, revision change, or process change, with every characteristic on the print ballooned and reported. This is the single most important record in aerospace procurement, and a capable Kalamazoo shop produces AS9102 FAIs as routine practice.
Alongside the FAI, you should receive full material traceability to the heat or lot, certificates of conformance referencing your part number and revision, and certifications from every special-process source in the routing. For defense work, you may also need country-of-origin and DFARS-compliant specialty-metals documentation, since defense flowdowns frequently restrict where raw material can be melted. Specify that requirement explicitly, because a shop serving mostly commercial aerospace may not pull DFARS-compliant stock by default.
Finally, expect configuration and change records. If the supplier proposes any deviation, AS9100 obligates a documented concession or waiver process with your approval. Get clarity at PO time on how deviations are handled and who in your organization holds approval authority, so a minor nonconformance doesn't silently ship or stall a delivery while paperwork catches up.
Frequently Asked Questions
No, and this is the most expensive assumption a buyer can make. AS9100 Rev D certifies the supplier's aerospace quality management system, but special processes like heat treatment, anodizing, chemical conversion coating, nondestructive testing, and welding require NADCAP accreditation for the specific process, and most machine shops do not perform these in-house. A Kalamazoo AS9100 shop will typically machine your part and then flow special processes out to NADCAP-accredited processors, controlling those outside sources under its quality system. What you should verify is that the shop's approved-supplier list includes a NADCAP-accredited source for every special process your part requires, accredited to the exact specification on your drawing. Because Southwest Michigan has limited local NADCAP processing capacity, much of this travels to the broader Midwest aerospace corridor, which adds transit days. Treat the machining and the special-process routing as one program when you plan lead time, and ask the supplier to deliver a single consolidated certification package rather than leaving you to assemble certs from multiple outside processors.
AS9100 certifications are tracked in the OASIS database, the Online Aerospace Supplier Information System maintained under the International Aerospace Quality Group. Pull the supplier's OASIS entry and confirm the certificate is active, not suspended or expired, and check the certification body, certificate number, and certified scope. The scope statement matters enormously in aerospace because it defines exactly what the shop is approved to perform under its aerospace system; machining approval does not extend to assembly or special processes. Beyond OASIS, ask whether your specific customer's approved-supplier requirements are met, since many primes layer additional flowdowns on top of AS9100. For defense work, also confirm the supplier can meet DFARS specialty-metals and country-of-origin requirements, which AS9100 alone does not guarantee. A legitimate Kalamazoo aerospace shop will have a clean OASIS record and will walk you through their scope without hesitation. If a supplier claims AS9100 but has no current OASIS entry, that is a definitive red flag, because OASIS registration is intrinsic to how the certification is administered.
The cost and rigor of AS9100 Rev D filter out shops that don't have the aerospace volume to justify it. On top of an ISO 9001 system, AS9100 adds configuration management, counterfeit-parts prevention, FOD control, product-safety processes, risk management, and AS9102 first article inspection, all of which require ongoing audit cost and dedicated quality staffing. Kalamazoo's industrial base grew primarily around pharmaceutical support, automotive parts, and medical devices, so the natural pull was toward ISO 9001, IATF 16949, and ISO 13485 rather than aerospace. The shops that did pursue AS9100 are typically precision CNC houses that already ran mature quality systems for medical or automotive customers and saw aerospace and defense as a higher-margin extension. The upside for a buyer is that the AS9100 shops you find here tend to be genuinely capable, because the certification reflects real investment rather than a marketing checkbox. The tradeoff is a thinner bench, so for large or specialized aerospace programs you may need to pair a Kalamazoo detail-part source with capacity elsewhere in the Midwest.
At minimum you should receive a first article inspection report in AS9102 format for any new part, drawing revision, or significant process change, with every print characteristic ballooned and individually reported. The FAI is the backbone of aerospace procurement and a competent shop treats it as standard deliverable. Alongside it, expect full material traceability back to the heat or lot number, a certificate of conformance tied to your exact part number and revision, and special-process certifications from every NADCAP-accredited source in the routing such as heat treat to AMS2750 pyrometry requirements or the specific NDT method. For defense parts, also require DFARS-compliant specialty-metals documentation and country-of-origin records, since defense flowdowns commonly restrict where material can be melted and processed. If the supplier needs any deviation from the drawing, AS9100 requires a documented concession or waiver with your written approval before the affected product ships. Establish at PO time who holds deviation approval authority on your side so a minor nonconformance does not silently slip through or stall a shipment while paperwork is reconciled.
Frequently yes, because the local AS9100 shops generally came up through medical and automotive precision machining before adding aerospace. Many hold ISO 9001 as a foundation, AS9100 for aerospace, and sometimes ISO 13485 for medical or IATF 16949 for automotive, all built on a common core quality system. A shop running multiple aerospace and medical product lines is practiced at job segregation, configuration control, and keeping traceability clean across customers. The thing to confirm is that each of your part families is governed by the correct certification scope, not just AS9100 broadly. A medical implant component needs ISO 13485 controls; an automotive production part may need IATF 16949 and PPAP. AS9100 governs the aerospace work specifically. Consolidating with one capable multi-certified Kalamazoo shop reduces supplier count and simplifies logistics and audits, which is attractive if your portfolio spans these sectors. Just map every part to its governing certification during qualification so nothing slips into a scope it isn't actually covered under.
Last updated: July 2026
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